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1SBN010155R1111 ABB CA4-11MRT 2 Pole 1NO 1NC Auxiliary Contact Block Ring-Tongue Terminals Front Mounting
ABB CA4-11MRT auxiliary contact block with 1NO+1NC instantaneous contacts for expanding compatible ABB contactors in industrial control applications.
£12.42
Why Choose the ABB CA4-11MRT Auxiliary Contact Block?
The ABB CA4-11MRT is a compact auxiliary contact block designed to expand the control and signalling capabilities of ABB contactors and contactor relays in industrial automation systems. As part of the ABB CA4 accessory range, it provides reliable auxiliary circuit switching for standard industrial environments.
This front-mounted auxiliary contact block provides instantaneous auxiliary contacts with screw terminals for secure connection. It is designed for installation on compatible ABB AF contactors and contactor relays, allowing additional monitoring, interlocking and control functions within electrical systems.
With a two-pole configuration and 1 normally open + 1 normally closed auxiliary contact, the CA4-11MRT provides additional switching capability for ABB contactor installations where status feedback and control circuit expansion are required.
Key Advantages
- Expands compatible ABB contactors with additional auxiliary switching functions.
- 1 NO + 1 NC instantaneous contacts for monitoring and control applications.
- Front-mounted design for straightforward installation.
- Screw terminals provide secure and reliable wiring connections.
- Suitable for standard industrial control environments.
- Compatible with ABB AF contactors and contactor relays.
Key Features
- ABB CA4-11MRT auxiliary contact block.
- Two-pole front-mounted accessory.
- 1 normally open + 1 normally closed instantaneous auxiliary contacts.
- Ring-tongue screw terminal connections.
- Designed for ABB AF contactor and contactor relay ranges.
- Suitable for auxiliary and control circuit switching.
- Compact accessory design for electrical panels.
Reliable Auxiliary Switching for Industrial Control Systems
Auxiliary contact blocks such as the ABB CA4-11MRT provide additional signalling and control functions by allowing contactors to communicate their operating status with automation systems, PLCs and electrical control circuits.
The CA4 accessory range is designed for industrial engineers and panel builders requiring reliable expansion options for ABB contactors while maintaining compact installation and dependable operation.
Typical Applications
- Industrial automation control panels.
- Motor starter assemblies.
- Contactor status feedback circuits.
- Machine control systems.
- Electrical interlocking applications.
- OEM control equipment.
Technical Specifications
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| Terminal Type | Ring tongue | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | Auxiliary contact block | |
| Auxiliary Contacts | 1NO + 1NC | |
| Manufacturer | ABB | |
| Series | CA4 Auxiliary Contact Blocks | |
| Model | CA4-11MRT | |
| Product type | Auxiliary contact block | |
| Product ID | 1SBN010155R1111 | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Mounting type | Front mounting | |
| Terminal type | Ring-tongue terminals | |
| Rated operational voltage | 24–690 V | |
| Conventional free-air thermal current | 16 A | |
| Rated operational current AC-15 | 4 A at 220–240 V AC | |
| Rated operational current DC-13 | 0.27 A at 220 V DC | |
| Protection rating | IP20 auxiliary terminals | |
| Dimensions (W × D × H) | 46 × 46 × 46 mm | |
| Weight | approx. 0.04 kg |
Frequently Asked Questions
What is the ABB CA4-11MRT used for?
The ABB CA4-11MRT is used to add auxiliary switching contacts to compatible ABB contactors for control, signalling and feedback applications.
How many auxiliary contacts does the CA4-11MRT provide?
The CA4-11MRT provides 1 normally open and 1 normally closed auxiliary contact.
How is the CA4-11MRT installed?
The auxiliary contact block is installed using a front-mounted connection arrangement on compatible ABB contactors.
What type of terminals does the CA4-11MRT use?
The CA4-11MRT uses ring-tongue screw terminals for secure auxiliary circuit connections.
Which products is the CA4-11MRT compatible with?
The CA4-11MRT is designed for use with compatible ABB AF contactors and contactor relays.
Trusted by Industrial Engineers Worldwide
ABB auxiliary contact blocks are widely used by automation engineers and panel builders to provide dependable signalling, monitoring and control expansion for industrial switching systems.
